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LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowances (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Dec. 31, 2015
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance	$ 14,668	$ 14,028	$ 14,260	$ 13,686
Charge-offs	(443)	(418)	(1,233)	(1,091)
Recoveries	50	105	265	471
Net recoveries (charge-offs)	(393)	(313)	(968)	(620)
Provision	1,050	307	2,033	956
Ending balance	15,325	14,022	15,325	14,022
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment					$ 1,989	$ 1,566
Collectively evaluated for impairment					13,252	12,595
Total ending allowance balance	14,668	14,028	14,260	13,686	15,325	14,260
Loans [Abstract]
Loans individually evaluated for impairment					13,245	14,980
Loans collectively evaluated for impairment					1,204,395	1,154,428
Total ending loans balance					1,219,478	1,171,503
Loans Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance			99
Ending balance	84		84
Ending allowance balance attributable to loans [Abstract]
Total ending allowance balance	84		99		84	99
Loans [Abstract]
Total ending loans balance					1,838	2,095
Commercial and Agricultural [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance	1,771	1,825	1,831	1,460
Charge-offs	(104)	(113)	(121)	(113)
Recoveries	15	26	65	64
Net recoveries (charge-offs)	(89)	(87)	(56)	(49)
Provision	101	(162)	8	165
Ending balance	1,783	1,576	1,783	1,576
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment					100	8
Collectively evaluated for impairment					1,683	1,823
Total ending allowance balance	1,771	1,825	1,831	1,460	1,783	1,831
Loans [Abstract]
Loans individually evaluated for impairment					846	1,498
Loans collectively evaluated for impairment					183,502	192,202
Total ending loans balance					184,348	193,700
Commercial and Agricultural [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance			0
Ending balance	0		0
Ending allowance balance attributable to loans [Abstract]
Total ending allowance balance	0		0		0	0
Loans [Abstract]
Total ending loans balance					0	0
Commercial Mortgages [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance	7,754	6,625	7,112	6,326
Charge-offs	(52)	(1)	(52)	(29)
Recoveries	1	17	10	101
Net recoveries (charge-offs)	(51)	16	(42)	72
Provision	520	326	1,153	569
Ending balance	8,223	6,967	8,223	6,967
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment					1,748	1,481
Collectively evaluated for impairment					6,416	5,572
Total ending allowance balance	7,754	6,625	7,112	6,326	8,223	7,112
Loans [Abstract]
Loans individually evaluated for impairment					11,542	12,773
Loans collectively evaluated for impairment					563,833	493,102
Total ending loans balance					577,118	507,700
Commercial Mortgages [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance			59
Ending balance	59		59
Ending allowance balance attributable to loans [Abstract]
Total ending allowance balance	59		59		59	59
Loans [Abstract]
Total ending loans balance					1,743	1,825
Residential Mortgages [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance	1,504	1,545	1,464	1,572
Charge-offs	(7)	0	(65)	(32)
Recoveries	0	0	0	0
Net recoveries (charge-offs)	(7)	0	(65)	(32)
Provision	50	7	148	12
Ending balance	1,547	1,552	1,547	1,552
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment					0	0
Collectively evaluated for impairment					1,522	1,424
Total ending allowance balance	1,504	1,545	1,464	1,572	1,547	1,464
Loans [Abstract]
Loans individually evaluated for impairment					399	235
Loans collectively evaluated for impairment					197,648	195,731
Total ending loans balance					198,142	196,236
Residential Mortgages [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance			40
Ending balance	25		25
Ending allowance balance attributable to loans [Abstract]
Total ending allowance balance	25		40		25	40
Loans [Abstract]
Total ending loans balance					95	270
Consumer Loans [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance	3,639	4,033	3,853	4,328
Charge-offs	(280)	(304)	(995)	(917)
Recoveries	34	62	190	306
Net recoveries (charge-offs)	(246)	(242)	(805)	(611)
Provision	379	136	724	210
Ending balance	3,772	3,927	3,772	3,927
Ending allowance balance attributable to loans [Abstract]
Individually evaluated for impairment					141	77
Collectively evaluated for impairment					3,631	3,776
Total ending allowance balance	3,639	$ 4,033	3,853	$ 4,328	3,772	3,853
Loans [Abstract]
Loans individually evaluated for impairment					458	474
Loans collectively evaluated for impairment					259,412	273,393
Total ending loans balance					259,870	273,867
Consumer Loans [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses, by portfolio segment [Roll Forward]
Beginning balance			0
Ending balance	0		0
Ending allowance balance attributable to loans [Abstract]
Total ending allowance balance	$ 0		$ 0		0	0
Loans [Abstract]
Total ending loans balance					$ 0	$ 0

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